A few hours I restart ispconfig_server my server slows to a crawl. It take a long time for web pages to come up and even to log into the server via ssh. Here is one of the sites on the server http://www.kchotspots.com/ You can see how slow it is. I just upgraded to 2.2.21 and that did not resolve the problem. Intel(R) Celeron(R) CPU 2.53GHz Mem: total= 506380 used= 499848 free= 6532 I lowered a lot of the following and it seemed to help... but over a few hours the system degrades <IfModule prefork.c> StartServers 2 MinSpareServers 4 MaxSpareServers 8 ServerLimit 20 MaxClients 16 MaxRequestsPerChild 512 </IfModule> <IfModule worker.c> StartServers 2 MaxClients 150 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> Anyone know what might be going on and how to fix it?